Calling `getFilter` on a peripheral without filters set causes an error

[rassvet-ii]

Describe

As described in the title, calling getFilter on peripherals such as basin with no filter set will result in an error.
Although this can be handled by using pcall, as with other cases of cc, I think it should return nil.
It seems this is caused by the null value returned here is being passed to the HashMap constructor here.

This feature is extremely useful when there are many basins on the network and find them so thanks!
(btw it was really hard to figure out who added this peripheral type)

Steps to reproduce

1. Place and connect any create block that has a filter slot
2. Run this code

peripheral.find('filtering_behaviour').getFilter()

3. Error occured

lua[1]:1 Java Exception Thrown
java.lang.NullPointerException: Cannot invoke "java.util.Map.size()" because "m" is null

Stacktrace from log

[16:35:27] [Server thread/ERROR] [da.co.co.co.LuaContext/COMPUTER_ERROR.JAVA]: Error running task
java.lang.NullPointerException: Cannot invoke "java.util.Map.size()" because "m" is null
	at java.base/java.util.HashMap.putMapEntries(HashMap.java:503) ~[?:?] {re:mixin}
	at java.base/java.util.HashMap.<init>(HashMap.java:492) ~[?:?] {re:mixin}
	at TRANSFORMER/advancedperipherals@1.21.1-0.8.1a/de.srendi.advancedperipherals.common.addons.create.FilteringBehaviourIntegration.getFilter(FilteringBehaviourIntegration.java:30) ~[AdvancedPeripherals-1.21.1-0.8.1a.jar%23517!/:1.21.1-0.8.1a] {re:classloading}
	at TRANSFORMER/computercraft@1.120.2/dan200.computercraft.core.asm.PeripheralMethodSupplier.lambda$static$1(PeripheralMethodSupplier.java:28) ~[cc-tweaked-1.21.1-forge-1.120.2.jar%23545!/:1.120.2] {re:classloading}
	at TRANSFORMER/computercraft@1.120.2/dan200.computercraft.core.asm.PeripheralMethodSupplier.lambda$static$4(PeripheralMethodSupplier.java:35) ~[cc-tweaked-1.21.1-forge-1.120.2.jar%23545!/:1.120.2] {re:classloading}
	at TRANSFORMER/computercraft@1.120.2/dan200.computercraft.api.lua.TaskCallback.execute(TaskCallback.java:28) ~[cc-tweaked-1.21.1-forge-1.120.2.jar%23545!/:1.120.2] {re:classloading}
	at TRANSFORMER/computercraft@1.120.2/dan200.computercraft.core.computer.GuardedLuaContext.lambda$issueMainThreadTask$0(GuardedLuaContext.java:45) ~[cc-tweaked-1.21.1-forge-1.120.2.jar%23545!/:1.120.2] {re:classloading}
	at TRANSFORMER/computercraft@1.120.2/dan200.computercraft.core.computer.GuardedLuaContext.lambda$issueMainThreadTask$0(GuardedLuaContext.java:45) ~[cc-tweaked-1.21.1-forge-1.120.2.jar%23545!/:1.120.2] {re:classloading}
	at TRANSFORMER/computercraft@1.120.2/dan200.computercraft.core.computer.LuaContext.lambda$issueMainThreadTask$0(LuaContext.java:29) ~[cc-tweaked-1.21.1-forge-1.120.2.jar%23545!/:1.120.2] {re:classloading}
	at TRANSFORMER/computercraft@1.120.2/dan200.computercraft.core.computer.mainthread.MainThreadExecutor.execute(MainThreadExecutor.java:138) ~[cc-tweaked-1.21.1-forge-1.120.2.jar%23545!/:1.120.2] {re:classloading}
	at TRANSFORMER/computercraft@1.120.2/dan200.computercraft.core.computer.mainthread.MainThread.tick(MainThread.java:139) ~[cc-tweaked-1.21.1-forge-1.120.2.jar%23545!/:1.120.2] {re:classloading}
	at TRANSFORMER/computercraft@1.120.2/dan200.computercraft.shared.computer.core.ServerContext.tick(ServerContext.java:154) ~[cc-tweaked-1.21.1-forge-1.120.2.jar%23545!/:1.120.2] {re:mixin,re:classloading,pl:mixin:APP:ccsecureboot.mixin.json:ServerContextAccessor from mod ccsecureboot,pl:mixin:A}
	at TRANSFORMER/computercraft@1.120.2/dan200.computercraft.shared.CommonHooks.onServerTickStart(CommonHooks.java:75) ~[cc-tweaked-1.21.1-forge-1.120.2.jar%23545!/:1.120.2] {re:classloading}
	at TRANSFORMER/computercraft@1.120.2/dan200.computercraft.shared.ForgeCommonHooks.onServerTick(ForgeCommonHooks.java:39) ~[cc-tweaked-1.21.1-forge-1.120.2.jar%23545!/:1.120.2] {re:classloading}
	at MC-BOOTSTRAP/net.neoforged.bus/net.neoforged.bus.EventBus.post(EventBus.java:360) ~[bus-8.0.5.jar%23164!/:?] {}
	at MC-BOOTSTRAP/net.neoforged.bus/net.neoforged.bus.EventBus.post(EventBus.java:328) ~[bus-8.0.5.jar%23164!/:?] {}
	at TRANSFORMER/neoforge@21.1.250/net.neoforged.neoforge.event.EventHooks.fireServerTickPre(EventHooks.java:1010) ~[neoforge-21.1.250-universal.jar%23507!/:?] {re:mixin,re:classloading}
	at TRANSFORMER/minecraft@1.21.1/net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:915) ~[client-1.21.1-20240808.144430-srg.jar%23506!/:?] {re:mixin,pl:accesstransformer:B,pl:connector_pre_launch:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:connector_pre_launch:A}
	at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.server.IntegratedServer.tickServer(IntegratedServer.java:110) ~[client-1.21.1-20240808.144430-srg.jar%23506!/:?] {re:mixin,pl:connector_pre_launch:A,pl:runtimedistcleaner:A,re:classloading,pl:mixin:APP:openpartiesandclaims.mixins.json:MixinIntegratedServer from mod openpartiesandclaims,pl:mixin:APP:modernfix-modernfix.mixins.json:perf.thread_priorities.IntegratedServerMixin from mod modernfix,pl:mixin:APP:modernfix-modernfix.mixins.json:perf.suspend_integrated_server_during_load.IntegratedServerMixin from mod modernfix,pl:mixin:APP:blueprint.mixins.json:client.IntegratedServerMixin from mod blueprint,pl:mixin:APP:sable.mixins.json:toast.IntegratedServerMixin from mod sable,pl:mixin:APP:lithostitched.mixins.json:client.IntegratedServerMixin from mod lithostitched,pl:mixin:A,pl:connector_pre_launch:A,pl:runtimedistcleaner:A}
	at TRANSFORMER/minecraft@1.21.1/net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:707) ~[client-1.21.1-20240808.144430-srg.jar%23506!/:?] {re:mixin,pl:accesstransformer:B,pl:connector_pre_launch:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:connector_pre_launch:A}
	at TRANSFORMER/minecraft@1.21.1/net.minecraft.server.MinecraftServer.lambda$spin$2(MinecraftServer.java:267) ~[client-1.21.1-20240808.144430-srg.jar%23506!/:?] {re:mixin,pl:accesstransformer:B,pl:connector_pre_launch:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:connector_pre_launch:A}
	at java.base/java.lang.Thread.run(Thread.java:1583) [?:?] {re:mixin}

Multiplayer?

No

Version

1.21.1-0.8.1a (Latest 1.21.1)

Minecraft, Forge and maybe other related mods versions

NeoForge 21.1.250 Minecraft 1.21.1

Screenshots or Videos

No response

Crashlog/log

No response